CreateProblem.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class CreateProblem : MonoBehaviour
{

    [SerializeField] TextMeshProUGUI text_factor_1;
    [SerializeField] TextMeshProUGUI text_factor_2;
    [SerializeField] TextMeshProUGUI text_answer_1;
    [SerializeField] TextMeshProUGUI text_answer_2;
    [SerializeField] TextMeshProUGUI text_answer_3;
    //[SerializeField] Button nextButton;

    int generateNum_1=0;
    int generateNum_2=0;
    int generatewrongAnswer_1=0;
    int generatewrongAnswer_2=0;
    int wrongAnswer_1 = 0;
    int wrongAnswer_2 = 0;
    int correctAnswer = 0;

    int level = 10; //Level numbers
    int totalProblems = 10;

    int[] randomizedAnswers = { 1, 2, 3 };

    private void Start()
    {
        //text_factor_1.text = "";
        //text_factor_2.text = "";
        StartCoroutine(SpinNumberEffect());
        GenerateProblemAndWrongAnswers();
    }

    IEnumerator SpinNumberEffect()
    {
        int spinNum1;
        int spinNum2;
        for (int x = 0; x < 10; x++)
        {
            spinNum1 = Random.Range(1, 12);
            spinNum2 = Random.Range(1, 12);

            text_factor_1.text = spinNum1.ToString();
            text_factor_2.text = spinNum2.ToString();
            yield return new WaitForSeconds(.12f);
            Debug.Log("Random numbers: " + spinNum1 + " x " + spinNum2);
        }
        GenerateProblemAndWrongAnswers();
    }
    public void TestFunction()
    {
        Debug.Log($"The test function is working: {level}");
    }
    public void GenerateProblemAndWrongAnswers()
    {
        Debug.Log("Generating problem.....");
        //Generate problem based on level selected:
        switch (level)
        {
            case 0:
                generateNum_1 = Random.Range(1, 12);
                generateNum_2 = Random.Range(1, 12);
                break;
            case 1:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 2:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 3:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 4:
                generateNum_1 = Random.Range(1, 12);
                generateNum_2 = Random.Range(1, 12);
                break;
            case 5:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 6:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 7:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 8:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 9:
                generateNum_1 = Random.Range(1, 12);
                generateNum_2 = Random.Range(1, 12);
                break;
            case 10:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 11:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
            case 12:
                generateNum_1 = level;
                generateNum_2 = Random.Range(1, 12);
                break;
        }

        correctAnswer = generateNum_1 * generateNum_2;
        Debug.Log($"Answer {generateNum_1} x {generateNum_2} = {correctAnswer}");

        //Wrong answers
        generatewrongAnswer_1 = Random.Range(1, 12) * Random.Range(1,12);
        generatewrongAnswer_2 = Random.Range(1, 12) * Random.Range(1, 12); ;

        //ProblemInTextFields();
    }

    void ProblemInTextFields()
    {
        //Add problem to textfields
        text_factor_1.text = generateNum_1.ToString();
        text_factor_2.text = generateNum_2.ToString();

        //Randomize positions of answers (correctAnswer, wrongAnswer1, wrongAnswer2)
        text_answer_1.text = generatewrongAnswer_1.ToString();
        text_answer_2.text = generatewrongAnswer_2.ToString();
        text_answer_3.text = correctAnswer.ToString();// correct answer.
    }

}